If time travel were ever going to become available in the future, it would also be available now and yesterday. Why? Because even if the secrets of time travel are unlocked 1000 years from now, the technology, like all technology, would eventually become cheap enough to mass-market. Everyone would have his or her own personal time-travel device, the same way everyone now has a computer.With average joes and janes traveling back and forth through time as easily as we go to Disney World or even the supermarket, and with money to be made by big companies from selling time machines to people of every preceding generation, time would not exist as we know it. Time would be like a highway, where you can get on and off at any exit. We wouldn't think of time as linear, but rather as no more than a location. "My friend Bob lives in the 17th century," you might say.
The fact that time is linear is proof that time travel will never be available to us. But if there are theories about how to do it, doesn't it make sense that, given enough time (500, 1000, 5000 years even), time travel should become possible? That it's never invented is proof that humankind simply isn't going to be around long enough to invent it.
Thus humanity will end.
In summary, since time travel doesn't exist now, it will never exist, which means we aren't around long enough to discover it.
Discuss.


